Columbia, MO Fence Regulations: Neighbor Fence Rules (2026)

Table 4.1-5 of Columbia's UDC, cross-referenced at Section 29-4.1(c)(2), lists lot boundary fences, walls, and retaining walls among the permitted encroachments into a required yard: they may be sited up to the lot line with no setback. The same table entry conditions that placement on consent, a fence can't encroach onto the public right-of-way or an adjacent owner's property without that owner's permission. The code stops there; it does not create any duty for neighbors to share the cost of a shared boundary fence, only a placement and encroachment-consent rule.